Nice work. Did you do all the concrete flat work too?
I agree, I don't like the metal edging at all. Sticks out like a soar thumb. Hopefully the grass fills in over time and hides that a little more.
Did you install irrigation there too? I didn't see any in the photos but I assume it's there.
Tell your workers; Don't leave the tags on your plants - that's amateurish.
One other thing; with the boulders; they should be buried slightly, not just laying on the ground. The concept with boulders is to make them look like they are emerging from the ground, as if they've been there for hundreds of years and you just landscaped around them. That's the more natural, realistic way to do it. It's also not very realistic to stack boulders on top of one another. Just FYI.
Not trying to nit-pick. Just trying to help. Still, very nice job.